Drop-wire for warring-machines



(No Model.) G. FOLLANSBEE.

DROP WIRE FOR WARPING MACHINES; I 2 Patented May 29,1883.

u. PETERS. mum-1mm wmm'gm n.c.

v UNITED 1 STATES PATENTQOFFICEf- GEORGE s. FOLLANSBEE, on OHARLESTOWN, MASSACHUSETTS.

DROP-WIRE FOR WARPlNG-MACHlNES.

SPECIFIQATION forming part of Letters Patent No. 278,327, dated May 29, ]88;3.'

i Application filed November 18,1882. (No model.)

. To all whom it may concern;

ing like parts.

This invention in drop-wires has for its object the productionof a simple and durable drop-wire which may be easily applied to its holder, and which may be constructed cheaply. In another application, No. 77,077, filed by me, of even date herewith, I have shown the dropwire apparatus as containing wires attached rigidly to bases fitted to turn with relation to their holder,.it having a curved surface. In

this present application the wires are pivoted upon carriages fitted within a trough-like holder, one part of which is made detachable to permit the easy introduction or removal of a carnage.

Figure 1 represents the dotted line or, Fig.2. Fig. 2 is a top view of a part of the drop-wire apparatus of a warping-machine sufficient to explain myinven tion. Fig. 3 is a modification, to berel'erred to, and Fig. 4 shows a carriage detached.

The wire A, having at its outer end an eye for the reception of the thread, is bent at its inner end, as shown in dotted lines, to form i an eye to embrace the fulcrum-pin for the wire.

" The bent inner end of the eye is extended into 35 a small slot, at, (shown in Fig. 2,) left in the carriage 0, preferably of type or equivalent cast metal, the slot at right angles to the axis of the carriage being formed when casting the carriage, and being longer than the space between the edges 3 4 ofthe holder. The inner end of the wire A having been inserted into a slot in the carriage, a small pin, m, willbe driven through holes inears of the carriage and the eye at the inner end of thewire, the pin serving as a fulcrum for the wire as it moves in the are of a circle. The carriage shown in the drawings is nearly circular and fits the holder 1),.and has suitable shoulders or parts, which, by their action against the holdar, prevent the carriage from being r0- tate a section of Fig. 2 on I prefer to make the holder in two parts, D W

The edges The carriages, being very small, may be cast cheaply, and will require but little metal 'to produce them.

The extension or plate f stiffens the holder.

If the holder is not divided, as in Figs. 1 and 2, the carriageswill beinserted, one at a time, at the end of the holder, and be pushed laterally into position. In use the carriages remain at rest and only the wires turn.

I do not broadly claim a pivoted wire.

Warping-machines are commonly provided y,

with expansion-combs, to evenly space the threads according to the number employed in the space allotted in the machine. To enable the threadsextended through wires pivoted upon a carriage to run in proper direct line the carriages holding the drop-wires, as now commonly constructed, are adjusted by hand. To obviate this difficulty I have placed the carriages loosely. within a'trough-like holder, and to enable them to be moved automatically, to thereby adapt them to the positions demanded by the comb, I have pivoted the dropwires to the carriages at their centers, so that the latter are easily moved in either direction and adjust themselves correctly in position by the slight strain or pull of the threads on the wires.

I am aware that hook-shaped carriages made of type-metal are opened, sprung over, and pinched upon a guide-bar having a rib, the drop-wire being. pivoted between ears formed at the lower end of the said carriage, instead of at the'center, as herein provided for,-and the pull of the thread on thedrop-wires is in such instance very different from that in my invention, wherein the pull of the thread does not cause the carriages to bind in the holder.

I claim- 1. The drop-wire and a carriage having a central pivot, upon which the drop-wire is pivoted, combined with thetrough-like holder, within which the said carriage is fitted loosely, to operate substantially as described.

2. Thedrop-wire and a carriage with which it is connected, combined with the holder having a removable cap to permitthe carriage to be placed in the holder, substantially as described.

3. The carriage provided atits front with a .slot at right angles toits axis, and the holder to embrace and retain the said carriage, combined with a drop-wire extended through the opening in the holder and the slot of the carriage and pivoted upon the said carriage, the i5 holder acting as a stop for the drop wire on its extreme positions, substantially as de scribed.

In testimony whereof I have signed my name to this specification in the presence of two sub- 20 scribing witnesses.

GEO. S. FOLLANSBEE.

Witnesses: V G. W. GREGORY, W. H. SIGSTON. 

